The orthogonal bulge-disc decoupling in NGC 4698
The R-band isophotal map of the Sa galaxy NGC 4698 shows that the inner region of the bulge is elongated perpendicularly to the major axis of the disc. At the same time a central stellar velocity gradient is found along the minor axis of the disc. The same properties have also been recognized in the...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Conference item |
| Published: |
2001
|
| _version_ | 1797080010966695936 |
|---|---|
| author | Sarzi, M Bertola, F Cappellari, M Corsini, E Funes, J Pizzella, A Beltran, J |
| author_facet | Sarzi, M Bertola, F Cappellari, M Corsini, E Funes, J Pizzella, A Beltran, J |
| author_sort | Sarzi, M |
| collection | OXFORD |
| description | The R-band isophotal map of the Sa galaxy NGC 4698 shows that the inner region of the bulge is elongated perpendicularly to the major axis of the disc. At the same time a central stellar velocity gradient is found along the minor axis of the disc. The same properties have also been recognized in the Sa galaxy NGC 4672. This remarkable geometric and kinematic decoupling is a direct indication that a second event occurred in the history of these galaxies suggesting that acquisition phenomena could play a primary role in the formation of early-type spirals. |
| first_indexed | 2024-03-07T00:54:00Z |
| format | Conference item |
| id | oxford-uuid:8763bc4a-1d2c-4d50-9116-b3954ef675c5 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T00:54:00Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:8763bc4a-1d2c-4d50-9116-b3954ef675c52022-03-26T22:10:24ZThe orthogonal bulge-disc decoupling in NGC 4698Conference itemhttp://purl.org/coar/resource_type/c_5794uuid:8763bc4a-1d2c-4d50-9116-b3954ef675c5Symplectic Elements at Oxford2001Sarzi, MBertola, FCappellari, MCorsini, EFunes, JPizzella, ABeltran, JThe R-band isophotal map of the Sa galaxy NGC 4698 shows that the inner region of the bulge is elongated perpendicularly to the major axis of the disc. At the same time a central stellar velocity gradient is found along the minor axis of the disc. The same properties have also been recognized in the Sa galaxy NGC 4672. This remarkable geometric and kinematic decoupling is a direct indication that a second event occurred in the history of these galaxies suggesting that acquisition phenomena could play a primary role in the formation of early-type spirals. |
| spellingShingle | Sarzi, M Bertola, F Cappellari, M Corsini, E Funes, J Pizzella, A Beltran, J The orthogonal bulge-disc decoupling in NGC 4698 |
| title | The orthogonal bulge-disc decoupling in NGC 4698 |
| title_full | The orthogonal bulge-disc decoupling in NGC 4698 |
| title_fullStr | The orthogonal bulge-disc decoupling in NGC 4698 |
| title_full_unstemmed | The orthogonal bulge-disc decoupling in NGC 4698 |
| title_short | The orthogonal bulge-disc decoupling in NGC 4698 |
| title_sort | orthogonal bulge disc decoupling in ngc 4698 |
| work_keys_str_mv | AT sarzim theorthogonalbulgediscdecouplinginngc4698 AT bertolaf theorthogonalbulgediscdecouplinginngc4698 AT cappellarim theorthogonalbulgediscdecouplinginngc4698 AT corsinie theorthogonalbulgediscdecouplinginngc4698 AT funesj theorthogonalbulgediscdecouplinginngc4698 AT pizzellaa theorthogonalbulgediscdecouplinginngc4698 AT beltranj theorthogonalbulgediscdecouplinginngc4698 AT sarzim orthogonalbulgediscdecouplinginngc4698 AT bertolaf orthogonalbulgediscdecouplinginngc4698 AT cappellarim orthogonalbulgediscdecouplinginngc4698 AT corsinie orthogonalbulgediscdecouplinginngc4698 AT funesj orthogonalbulgediscdecouplinginngc4698 AT pizzellaa orthogonalbulgediscdecouplinginngc4698 AT beltranj orthogonalbulgediscdecouplinginngc4698 |